Lens-carriage for photographic cameras.



W. A. RIDDELL & R. KROEDEL.

LENS CARRIAGE FOR PHOTOGRAPHIC CAMERAS.

APPLICATION HLED MAR. 23. 1914.

1,143,782. Patented June 22,- 1915. y

2 SHEETSv-SHEET 1.

W. A. RIDDELL & R. KROEDEL.

' LENS CARRIAGE FOR PHOTOGRAPHIC CAMERAS.

APPLICATION FILED MAR. 23, 1914.

` 1*,11-J3f782.y Patented June 22, 1915.

2 SHEETS-SHEET 2.

their atroz/nuto STATES PATENT oEEicE.

mail "a. ammira. mnncm'r nonni.,

To wrm xonax courant, Aoir nocnEsTEa, NEW Yoan,

- 'irilnirsizfonnv ans-ommen Be it known that we, Wma! A.. Binmni. and ROBERT Kronau., botbof Rochester,

- in the county of `Monroe and State of New clare the exact description of the same, 'reference be- York,-ha`ve invented certain newk and useful Improvements in LensfCai-rlag'e's for Photographic Cameras; and we do hereby defollowing to be a full, clear, and

ing had to the accompanying drawings,

forming apart of .this specification,

' the reference-numerals thereon.

tively Our presentfinvention relates tophotography and more particularly to photographic cameras of the folding or extensible in which the lens is moved along its axis relato the recording surface on a front or .carriage to regulate thefocus Aand our in- "lensgindiierent positions of `foculadjust- `sists in certain ment.`

To these and other ends the invention con;

l improvements and combinationsofparts all described, 'the novel features being pointed out in the claims at um ma of the Specification.

In the drawings Figure lis a front elevation of a camera provided witha lens car- .riage constructed in accordance with and illustrating one embodiment of our inven-v tion; `Fig. 2 is a side elevationthereof partly onthe line 3-3 of Fig. 2; Fig. 4 is an en-` larged detail section takenI vertically and' in section through thebed; plan view of thecarriage and taken in horizontal ysection through the lens board longitudinally through the'carriage and adjacent' portions of the on `the lline 4-4 of Fig. 3;

Fig. 5 isa Lview on the line 5f-51of Fig. 3; Fig. 6 1s a similar view but taken in transverse section on the lines --'offFigs 3, 4 and 5, and -7 is also transverse section taken on they is in the neighborhood thereof. Thissto in the several p S' 'lar reference numerals figures indicate the same'parts.:

In the present embodiment vof the inven tion, a folding or pocket camera of a well known type is shown, 1 indicating the body mueca of ment. ainimeaa'mlana as, smal n. camu.

object to provide a simas will be' hereinafter more or nocnnsrnn, Naw Yoan, assreNons a coaronaTIoN or Batented June 22, 1915.

thereof aus bellows, 3 the lens tube and 4 the bed upon which the lens is sup orted when inoperative position and whic also constitutesa door for the body when the before mentioned parts are folded and housed therein. It isto this type of camera that our improvements are particularly applicable.

The bed i is provided with tracks 5 formed by laterally turned oiset flanges on a track plate 6. Movable on these tracks is the carriage which, in the practice of our invention, is preferably made of a mono-block die casting 7 and provided with -the following integral. formations: two op osed-inwardly turnedhooks or jaws v8 on lts bottom that" engage the tracks 5 as shownand hold thecarria e thereon though at all times permitting a ee sliding movement thereof forwardly and rearwardly; two depressions 9 endl() on opposite faces of the block, preferably roughened vas indicated to constitute fin er'grip surfaces; a vertically` disposed an .vertically o eningr centr slot or recess 11;y a verticali disposed but laterallyf opening ofset ot 12; an inner horizontal bore or recess 13 in the plane of.

and communicating with the recess 12, and' a transverse bore or recess 14 intersecting the' recess 12. A further lar e cutaway portion or under recess 15 maybe this is merely for the purpose of removing the metal and reducing weight.v

The first mentioned slot 11 receives the lower taperedend of the lens board 16 that ,provided -but supports the lens tube 3, which lens boardhas a tongueextending'through to the under side`of the carria e 'blockand riveted over 4as at 18. Pivote infthelaterally opening recess 12 on a pin 19 passed through the bore 14 is a locking vplate or member 20 having an exteriorly arranged operating porf tion-'21l and, behind it, a shoulder 22 upon which latter bears a plunger'23 occupying the inner recess 13 together witha 24 that thrusts the plunger outwardly. lie normal tendency of the said .spring is 'to thrust an engaging portion 25 on the locking lplate v downwardly into engagement with a stop plate 26 on thek bed 4 when the carriage plate 26l has an upwardly turned flange2 parallel to the tracks 5 and provided with ai 2o lens from the sensltized recording surface ".priate to'y ..stops indicating proper f `the 'surfaces 9 and 10 between the ocal distances of objects for different rela-r tive positions of thecarriageand lens.` a In operation, the carriage 7 is ripped by moved freely on the tracks until theengaging portion 25 of the'locking member 20 is ladjacenttothe stop ange27. The operating l portion `210i the'locking member constitutes al portion of, or is at leastsubstantially conl tinuouswaa the grip' surface 1o and henceis depressed against the spring `13'tov raise l the engaging portion 2 5, automaticallyv during these' movements`` It isj released bynremoval of the 4fingers 'and the engaging porl. Ytionis yallowed to drop into coperation' with` such stop 28 as indicates at v29 the distance of l the object tobe photographedfrom'the camera.v This gives theposition of thecarriagey for a correspondingfocal distance offthe and thecarriageis locked against movement `in either,direction'pnlthe'f'track'until the locking devicegis again released by pressure on the member 21 when the is .applied to the gripf surface 10.

` It will Ybe observed that grips `have nothing to do .with the' direct engagel We claim as our invention: A

' 1. [In a photographiev camera, the combi-v- -f"nation\w ith abed having a series of vstops `of focal distanee',"of a^lens carriagermovs ment of the carriage and'.v track `which f en-l sucha's to permit free slidingmov'ement'. A

thereon'and associated y'graduations in units "able freelyonthelbe'dfand a locking device fonthe carriage adapted to coperate withv the stops Ien the bed, selectively vto simulta- 40 focus rneously loclijthecarri'age and the 2.l In' a .photographie camera; the 'combination/with 'a bed having, a traer there@ a series of Lstops paralleling the track yand. provided y with f' associated graduations in units of focalf:distance, of a 1enscarr1age movable freely formed b 4.depressions on opposite sides" "thereof, an havingy a recess `mljacent ,to lone of saidv surfaces,v a 'lockin "device adapted to coperate with the to lock the' carriage thereon ,f arrangedl inthe recess, vand operating portion on the locking device comprised'withinthe depression of the last mentioned'finger grip surface pnt Ofilid surface. A

" 13,4 Inma photographic camera,. the combination with a bed, and a track thereon, of a i lenscarriage movablepn the track'andcomprisingua' block 'having integral opposed @tra'ck'engaging jaws andrelatively rigid finger g'rlp surfaces onopposite sides thereof, and A a 1 `:ki ng device on the `carriage gers and A 4able thereon and comprisin tinuous nation wit nietjes 'i' adapted to coperate withl the bedttolock the.

carriage thereon and havinganoperating .portion constituting a substantiallycontinulous part of one of` the finger grip portions.

4: a photographic camera, thecornbi natlon w1th a bed,` of a lens carriage movopposed and relativelyrigi faces on va block having` finger gripsur opposite sides thereof'and ar'ecesa 'adjacentfto one of saidfsurfaces', a locking device adapted' to coperate with thebedto 4lock the'earr1agej-thereon'yarrangedv in "the recess, and an operating portion on the lock# ingdevice constituting a substantially congrip sur ace.

al?? of the lastfinentioned finger able thereon andpfcmprising'a' block having opposed relatively rigid finger ipsurfacesf othe track and havingrelative Ay'ixed jaws gel" grip surfaces onl opposite sides thereof, and n "devie'eon the carriage ada tedto co rate with the stopson-jthe beV ,selec- I fti've y, to simultaneously lock' thecarriage and indicate the q focus, saidlocking device engaging the. latter 4vsald carriage bein further provided witlr relatively fixed'` a loc being providedy with an 'operating portion l having a ngerg'grip surface substantially continuous with one ot thefrst mentioned linger grip surfaces.

6. In a photographic Y os f camera, the co'mbi-v a bed,y ofa lens 'carnage mov- Y, e

able thereon and comprising an. lntegral and a locking device adapted' toeop'erate Vthe carriage and havin recess, alockin device adapted to' co el'-,

block having a` vertically disposed slotr 1 shaped and laterally opening recess therein nef . at@ with'the beA to lockte@ carriage in edpositions thereon comprisinga plate pivoted in ,the outer recess inlwhich 'it is adaptedto'f be inserted edgewise and vhaving an exte-l riorly arranged operating portionQ'and a5 in the 'inner 'recess and spring arranged .acting upon the locking devicef tolmove ittof en a 'ositiom y g ging p' :WILLIAMA.` RIDDELL. ROBERT KROEDEL.v sv HENRY L. Timm,

JOHN A. ROBERTSON. 

